{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["instrument agency", "product producer", "message topic", "entity destination"], "input": "a case of craniopharyngioma originating in the sphenoid bone is presented ."}
{"instrument agency": [], "product producer": [], "message topic": [], "entity destination": []}